For what I saw the tips it pretty close of the rear difusor.I have the same issue.How to drop down ?

I had the same issue on my 2013 135i convertible but came up with a fix: the Black rubber OEM hangers in the rear have an open center section that is meant to give it some up & down movement. You can either replace both of them with solid rubber hangers or insert a hard piece of rubber or something else in the open section by simply pulling the hanger down and sliding something in thus bringing the tips down.

Got mine last week from Kevin at EAS. Stainless steel street. Nice upgrade from stock. very slight drone around 2500. I bought a catback for my 2010 S4 from AWE in philly and i think the Berk has a deeper more refined growl. Loud when i start it, then it calms down.
When I get on it.. it responds with the growl I hoped for. Great investment. can't say i notice any power increase as they advertise 10hp. But. that's not why I got it. My local dealer has a 2012 E82 with a Dinan, and I think the Berk sounds just as nice for less than half the cost.

I had the same issue on my 2013 135i convertible but came up with a fix: the Black rubber OEM hangers in the rear have an open center section that is meant to give it some up & down movement. You can either replace both of them with solid rubber hangers or insert a hard piece of rubber or something else in the open section by simply pulling the hanger down and sliding something in thus bringing the tips down.